Product Details anti-STAT3 Antibody

1. Since applications vary, each investigator should titrate the reagent to obtain optimal results. 2. Please refer to us for technical protocols. 3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing. 4. Source of all serum proteins is from USDA inspected abattoirs located in the United States.

Purification

The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.

Immunogen

Rat Stat3 aa. 1-175

Clone

84-Stat3

Isotype

IgG1

Target Details STAT3

The Stat proteins function as both cytoplasmic signal transducers and activators of transcription. Stat91/84 (the two proteins are the result of alternate splicing-Stat91has an additional 38 C-terminal amino acids) and Stat113 were the first identified members of this protein family. With the discovery of additional members of the Stat family (Stats3 & 4), the nomenclature has been revised to indicate the Stat family members in the order of their discovery. Stat 91, 84, and 113 have become Stat1alpha, Stat1beta, and Stat2, respectively. Stat3 is a 92 kDa protein that is activated as a DNA binding protein through tyrosine phosphorylation in response to treatment of cells with EGF and IL-6 but not with IFN-gamma. Stat3 is widely expressed and can bind to DNA in the absence of Stat1alpha or Stat2. Stat3 can bind to the sis-inducible element (SIE) site from the c-fos promoter. The site is similar to the GAS element that is present in IFN-gamma induced genes. It appears that Stat3 binds to DNA as a homodimer, but it is also capable of binding as a heterodimer with Stat1. With the isolation of Stat3 and the discovery of Stat4, it appears that the Stat family may contain many members, each with a characteristic tissue distribution and specific activating ligands.

Zhong, Wen, Darnell: "Stat3 and Stat4: members of the family of signal transducers and activators of transcription." in: Proceedings of the National Academy of Sciences of the United States of America, Vol. 91, Issue 11, pp. 4806-10, 1994